Tried this existing work box and another as I needed to install two drawers in my house. The other box was much easier to install and was much more durable (https://www.amazon.com/gp/product/B001DPV5ZA/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1) For some reason this box wanted to move when I tried to attach it to the hairpin. After it was secured, it seemed to move a lot despite being pressed firmly against the hairpin. I'm also not a fan of the kind of knockout this box has.